DUAL-WAVELENGTH PHOTOMETER AND FIBER OPTIC SENSOR PROBE.

摘要

dual wavelength optical sensor for measuring the optical characteristics of the sensor layers are sensitive to a certain quantity to be measured. the sensor includes a light source (16, 18) for producing light output with two wavelength and generating a pair of distinct elements into a first and a second light exit.an optical fiber (26) operated in a shared time receives the light having two different wavelengths, and is emitted from the first exit, and transmits the light in a time sharing operation, a sensor probe (14). a detector (30) receives the sampling light having two different wavelengths, and is emitted from the thin film sensor.a detector (34) receives the reference light having two different wavelengths are emitted from the second and output, and controls the intensity at the exit of the light source.a signal processing system (35) associated with each other in the optical characteristics of the measurement of thin film sensor in response to each of the two different wavelengths to produce action on changes in optical characteristics of the co uche thin sensor.